Question

The main function of lateral ties in a reinforced concrete rectangular column under axial compression is to

• A. avoid the buckling of the longitudinal steel under compression
• B. provide adequate shear capacity
• C. provide adequate confinement to concrete
• D. reduce the axial deformation of the column

Hint:

- Lateral ties are crucial in preventing premature failure of reinforced concrete columns, particularly in slender columns subjected to axial compression.

Answer 1

The Correct Option is A

Step 1: Understanding lateral ties in reinforced concrete columns. - Lateral ties are provided in reinforced concrete columns to hold the longitudinal reinforcement (main bars) in position and prevent their buckling under axial compression. Step 2: Role of lateral ties. - They restrain lateral expansion of the column core. - They prevent buckling of longitudinal steel, ensuring better load transfer and stability. - While they do provide some confinement to concrete, their primary function is to prevent buckling of longitudinal reinforcement. Thus, the correct answer is (A) avoid the buckling of the longitudinal steel under compression.